“Those who mind don't matter, and those who matter don't mind.”
Blaise Pascal, French philosopher and mathematician, said, “Treat a human being as they are, and they will remain the same. Treat them as what they can become, and they will become what they can become.”
As a leader, you should hold positive and high expectations that your team will solve that difficult problem, meet those seemingly insurmountable challenges, and more often than not, they will meet or exceed your expectations.
In the workplace, management expectations of employees can also alter management behaviour, and subsequently affect staff results.